(114m²/sec, 84.8%, 59.87°, 14.18°) The following particulars are available about a propeller turbine. speed ratio= 1.7, flow ratio= 0.45, diameter of runner-5m, speed= 140rpm, hydraulic efficiency=91.8%, final discharge at outlet is radial. Determine the head on the turbine, the guide blade angle, the runner vane angles at inlet and outlet at the extreme edge of the

(114m²/sec, 84.8%, 59.87°, 14.18°) The following particulars are available about a propeller turbine. speed ratio= 1.7, flow ratio= 0.45, diameter of runner-5m, speed= 140rpm, hydraulic efficiency=91.8%, final discharge at outlet is radial. Determine the head on the turbine, the guide blade angle, the runner vane angles at inlet and outlet at the extreme edge of the

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Using data given below, determine the main dimensions and blade angles of a Francis turbine. Net head=65 m, speed= 700 rpm, BHP= 400. Actual hydraulic efficiency3D 94%, overall efficiency= 85%, flow ratio= 0.18, wheel width at inlet/ wheel diameter at inlet=0.1, inner diameter/ outer diameter= 0.5. Assuming constant velocity of flow and radial discharge. Neglect area blocked by blades. Vane angle at inlet: 27° 39 33° 53 41° 82 O 52° 56
Using data given below, determine the main dimensions and blade angles of a Francis turbine. Net head=65 m, speed%3 700 rpm, BHP= 400. Actual hydraulic efficiency= 94%, overall efficiency= 85%, flow ratio= 0.18, (wheel width at inlet/ wheel diameter at inlet)=0.1, (inner diameter/ outer diameter)= 0.5, assuming constant velocity of flow and radial discharge. Neglect area blocked by blades. Width of the wheel at outlet:
(2) cislai Using data given below, determine the main dimensions and blade angles of a Francis turbine. Net head=65 m, speed= 700 rpm, BHP= 400. Actual hydraulic efficiency= 94%, overall efficiency= 85%, flow ratio= 0.18, wheel width at inlet/ wheel diameter at inlet=D0.1, inner diameter/ outer diameter= 0.5. Assuming constant velocity of flow and radial discharge. Neglect area :blocked by blades. Vane angle at inlet 27° 39 33° 53 41° 82 52° 56
Using data given below, determine the main dimensions and blade angles of a Francis turbine. Net head=65 m, speed%3 700 rpm, BHP= 400. Actual hydraulic efficiency= 94%, overall efficiency= 85%, flow ratio= 0.18, wheel width at inlet/ wheel diameter at inlet=0.1, inner diameter/ outer diameter= 0.5. Assuming constant velocity of flow and radial discharge. Neglect area blocked by blades. Vane angle at inlet:
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A Pelton wheel works under a net head of 600 m and it runs at a speed of 720 rpm. The mean pitch dlameter of runner is 1.2 m. For a discharge rate of 0.2m/s, find the power available at the nozzle and hydraulle efficiency of turbine. Assume : C, = 0.98, side clearance angle of buckets = 20, Friction factor of bucket = 0.9.
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1- A double jet of Pelton turbine driven by double nozzles to produce (4250 kw) to the shaft of an electrical generator when running at (400 rpm). The height of (180 m). wheel diameter is (1450 mm). The velocity of relative= 0.9 of jet velocity. If the angle of bucket is (165'), determine: a) Hydraulic efficiency b) Diameter of the jet
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